Disclosed is an electronic device comprising a detection circuit and a processor which is operably connected to the detection circuit, wherein the processor is configured to: acquire a first signal related to an external object through the detection circuit; acquire, based on at least the first signal, a first heart rate by using a first filter having an attribute of a first frequency band, and a second heart rate by using a second filter having an attribute of a second frequency band; change, at least based on the first heart rate and the second heart rate, at least some attributes associated with the second filter; acquire a second signal related to the external object through the detection circuit; and generate heart rate variability (HRV) information by using the second filter having the at least some attributes changed based on the second signal. In addition, various embodiments identified through the description are also possible.